An obligate parasite, or holoparasite, is a parasitic organism that cannot complete its life-cycle without exploiting a suitable host.
Part of the Andes mountain range, Aconcagua is the second highest of the Seven Summits, behind only Mount Everest in Asia. At 22,837 feet (6,961 meters), not only is it the highest mountain in South America, it is the tallest peak in all of the Americas as well as the Southern and Western Hemispheres.
The following is a list of the tallest mountains of the world, the peak elevations above sea level on the planet. These ten tallest mountain in the world are all found in the Himalaya. In fact, the fifty tallest mountains in the world are all found in Asia. 1. Mount Everest-China/Nepal - 29,035 feet (8850 meters). 2. K2 - China/Pakistan - 28,251 feet (8611 meters).